28477260

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:352

約数の個数: 144

約数和(自身を含む): 100166976

約数和(自身を除く): 71689716

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 126, 140, 180, 194, 210, 233, 252, 291, 315, 388, 420, 466, 485, 582, 630, 679, 699, 873, 932, 970, 1164, 1165, 1260, 1358, 1398, 1455, 1631, 1746, 1940, 2037, 2097, 2330, 2716, 2796, 2910, 3262, 3395, 3492, 3495, 4074, 4194, 4365, 4660, 4893, 5820, 6111, 6524, 6790, 6990, 8148, 8155, 8388, 8730, 9786, 10185, 10485, 12222, 13580, 13980, 14679, 16310, 17460, 19572, 20370, 20970, 22601, 24444, 24465, 29358, 30555, 32620, 40740, 41940, 45202, 48930, 58716, 61110, 67803, 73395, 90404, 97860, 113005, 122220, 135606, 146790, 158207, 203409, 226010, 271212, 293580, 316414, 339015, 406818, 452020, 474621, 632828, 678030, 791035, 813636, 949242, 1017045, 1356060, 1423863, 1582070, 1898484, 2034090, 2373105, 2847726, 3164140, 4068180, 4746210, 5695452, 7119315, 9492420, 14238630, 28477260]

約数ペア:

[(1, 28477260), (2, 14238630), (3, 9492420), (4, 7119315), (5, 5695452), (6, 4746210), (7, 4068180), (9, 3164140), (10, 2847726), (12, 2373105), (14, 2034090), (15, 1898484), (18, 1582070), (20, 1423863), (21, 1356060), (28, 1017045), (30, 949242), (35, 813636), (36, 791035), (42, 678030), (45, 632828), (60, 474621), (63, 452020), (70, 406818), (84, 339015), (90, 316414), (97, 293580), (105, 271212), (126, 226010), (140, 203409), (180, 158207), (194, 146790), (210, 135606), (233, 122220), (252, 113005), (291, 97860), (315, 90404), (388, 73395), (420, 67803), (466, 61110), (485, 58716), (582, 48930), (630, 45202), (679, 41940), (699, 40740), (873, 32620), (932, 30555), (970, 29358), (1164, 24465), (1165, 24444), (1260, 22601), (1358, 20970), (1398, 20370), (1455, 19572), (1631, 17460), (1746, 16310), (1940, 14679), (2037, 13980), (2097, 13580), (2330, 12222), (2716, 10485), (2796, 10185), (2910, 9786), (3262, 8730), (3395, 8388), (3492, 8155), (3495, 8148), (4074, 6990), (4194, 6790), (4365, 6524), (4660, 6111), (4893, 5820)]